body {
    width: 100vw;
    height: 100vh;
    background-image: url("https://images.wallpaperscraft.com/image/single/train_mountains_art_130351_2560x1440.jpg");
}

#app {
    width: 100%;
    height: 100%;
    display: flex;
    align-content: center;
    justify-content: center;
}

.no-scroll::-webkit-scrollbar {
    display: none;
}